Common grade fire clay bricks for boiler
Common grade fire clay bricks for boiler
Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
Product specifications
Fire clay brick is made of local top grade fireclay materials under the high temperature according to the lasted national standard, which possesses even bulk density, high strength, low thermal conductivity and low impurity. Fire clay refractory brick has wide usage and the largest production.
| Material | fireclay materials |
| Color | earthy yellow |
| Size | Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide! |
| Shape | Straight Brick,special-shaped brick,checher brick,trapezoidal brick,Bricks with taper,arch brick,skew brick,ect. |
Features
1. Low coefficient of linear expansion.
2. Low thermal conductivity.
3. Strong resistance to the acid slag erosion.
4. Excellent thermal shock resistance.
5. High Refractoriness under load.
6. Low high-temperature creep rate.
Suitable For
| Iron & steel making industry | Blast furnace, hot blast furnace(stove), pellet shaft furnace, hot metal ladle, steel ladle, tundish, eating furnace, soaking pit furnace, heat treatment furnace, refining furnace, reheating furnace, metal mixter furnace, cupola furnace etc thermal technology equipment |
| Non-ferrous Metal industry | Smelting furnace, reverberatory furnace etc |
| Building materials industry | Cement kiln, glass kiln, ceramic kiln, lime kilns, kiln car, tunnel kiln, rotary kiln |
| Energy&Incineration | Coke oven, general boiler, power generation boiler, circulating fluidized bed boiler, electric furnace, carbon roasting furnace, waste incinerators |
| Others | Petrochemical industry furnace, Pizza oven |
Physical and chemical indexes
| Item/Grade | Fire clay brick | |||
| SK-30 | SK-32 | SK-34 | SK-35 | |
| AL2O3% (≥) | 30 | 35 | 38 | 45 |
| Fe2O3% (≤) | 2.5 | 2.5 | 2 | 2 |
| Refractoriness(SK) | 30 | 32 | 34 | 35 |
| Refractoriness under load, 0.2MPa, °C (≥) | 1250 | 1300 | 1360 | 1420 |
| Apparent porosity (%) | 22-26 | 20-24 | 20-22 | 18-20 |
| Bulk density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 |
| Cold crushing strength ,MPa (≥) | 20 | 25 | 30 | 40 |
Fire clay brick for hot blast stove and low creep clay brick
| Brands | DRN-125 | DRN-120 | RN-42 | RN-40 | RN-36 |
| Al2O3 % | ≥45 | ≥42 | ≥42 | ≥40 | ≥36 |
| Apparent Porosity % | ≤22 | ≤22 | ≤22 | ≤22 | ≤22 |
| Bulk density g/cm3 | 2.15-2.35 | 2.00-2.00 | 2.00-2.20 | 2.00-2.20 | 2.00-2.20 |
| Cold compressive strength MPa | ≥40 | ≥35 | ≥35 | ≥30 | ≥25 |
| Refractoriness°C | ≥1760 | ≥1760 | ≥1760 | ≥1740 | ≥1700 |
| Refractoriness under load°C | ≥1410 | ≥1350 | ≥1300 | ||
| Creep rate%(0.2MPa*50h)≤ | 0.8 | 0.8 | |||
| 1250°C | 1200°C |
Our main products: refractory material for industrial furnaces, such as high-alumina brick, clay brick, silicon brick, high-strength diatomite brick, light weight insulation brick, low iron mullite brick, etc.; anti-stripping alumina brick, alkali proof brick, phosphate brick for cement industry; For the industrial furnace and power boiler, we can provide abrasive brick, corundum brick, mullite brick, wear resistant castable, corundum castable, high strength low cement castable, impervious material, plastic refractory, etc.
Wooden pallets with plastic film or according to your request.
1. Strong packing protects the goods from any possible damage during transit.
2. Solid packing and overall stuffing prevent the cases from vibration and jarring.
3. Necessary precaution is taken to protect goods from pilferage or rain.
Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.
By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.
OREDERS SHIPPED 10% FASTER THAN COMPETITORS!
We can provide you the best price, and what you will get from us is our best effort in service and the hospitality that you are willing to become our Friend.
Our main export markets : North America, Western Europe, Eastern Europe, South America, Southeast Asia, Eastern Asia, Mid East, Oceania, Africa
We have own workshop , advanced production line , experienced workman and stricted check out flow .
Rongsheng Refractory has professional sales and after-sale service team who provide customers all-around service about product application, construction installation and operation technology training etc. Now we have established cooperation relationship with many science and research unit and our products have been sold to Japan, Indonesia, Iran, Kazakhstan and Vietnam etc.
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